FortiGate 300D LENC End of Life
Understand when support ends and how to future-proof your FortiGate 300D LENC End of Life deployment.

The FortiGate-300D-LENC has been deployed as a secure, mid‑range NGFW for branch and campus environments. Now that the model has reached end of life, organizations should evaluate options that align with current threat landscapes and simplify operations. The guidance below focuses on replacement considerations to modernize security, maintain continuity, and improve performance.
What this means for your organization
- A chance to modernize your security posture and prepare for future growth.
- Opportunity to benefit from improved performance, efficiency, and protection.
- Align IT infrastructure with compliance, scalability, and long-term ROI.
FortiGate-300D-LENC Date & Status
Here’s what you need to know about FortiGate-300D-LENC lifecycle status.
- End of Life (EOL): 10/11/23

FortiGate-300D-LENC Replacement
Replacing the FortiGate-300D-LENC isn’t just about swapping hardware. It’s an opportunity to reassess architecture, address emerging threats, and align with current operational and cloud-first requirements.
Role of the FortiGate-300D-LENC:
A mid-range unified threat management and firewall appliance designed for branch and mid-sized deployments, balancing security features with device-level performance and connectivity.
Evolving Traffic Patterns:
Contemporary networks carry far more encrypted and east-west traffic, cloud application flows, and remote-user sessions than when the 300D-LENC was introduced—demanding deeper inspection and higher sustained throughput.
Modern Demands:
Today's architectures require integrated SASE capabilities, scalable VPN/SD-WAN, centralized orchestration, and accelerated TLS inspection—features that reduce operational overhead while improving security efficacy.
Strategic Upgrade:
Replace with a platform that preserves the 300D-LENC’s role at the edge but adds higher inspection capacity, advanced threat protection, unified management, and flexible connectivity options to future-proof branch security.
Understanding Fortinet's EOL Policy | End of Life Risks
Every Fortinet product follows a defined lifecycle, moving through the following stages:

- General Availability (GA): The product is released and actively sold and supported.
- End of Sale (EOS): The device is no longer available for purchase from Fortinet or authorized partners.
- End of Life (EOL): Feature development and most firmware updates stop.
- End of Support (EOSL): Fortinet ends all official support, security patches, and RMA services.
Why This Matters for Your Business
Understanding where your hardware sits in this lifecycle helps you:
- Plan timely upgrades before critical support ends.
- Ensure security compliance and avoid audit failures.
- Maintain operational continuity with fully supported hardware.
Risks of Continuing to Use EOL Hardware
When a firewall or security appliance reaches End of Life, the risks of keeping it in production increase dramatically
No Security Patches
Outdated devices won’t receive updates, leaving your network exposed to new vulnerabilities.
Lack of Vendor Support
Once support ends, there’s no access to Fortinet’s technical resources or RMA services.
Compliance Failures
Auditors may flag unsupported hardware as a violation of security and industry standards.
Operational Instability
Legacy devices may struggle with modern workloads, encrypted traffic, and cloud integrations.
How Aseva Helps with Fortinet EOL
Here’s how Aseva ensures a smooth and secure FortiGate lifecycle transition.
Lifecycle Planning:
Track Fortinet GA → EOS → EOL → EOSL.
Seamless Migration:
Dedicated engineers ensure minimal downtime.
Future-Proof Security:
Replace with next-gen models aligned to your needs.
Why Choose Aseva for Fortinet End of Life Support?
Choosing the right partner is critical. With Aseva, you gain a trusted advisor with deep expertise in Fortinet and broader cybersecurity lifecycle management. We help reduce risk, ensure compliance, and maximize ROI on your IT investments.